Wire-covering device



Emma 2%, 119286 1 674- 76? C. H. DESAUTELS WIRE COVERING DEVICE 5SheetsSheet 2 I N VEN TOR.

A ORNEY.

June 2 22 1,674,767

c. H. DESAUTELS WIRE COVERING DEVICE I N VEN TOR.

8 .z 8+ a; 3" ATT P EY.

if atented June 2%, 1228.

harsh err.

GEARLES H. IDESAUTELS, F SPRINGFIELD, MASSACHUSETTS, ASSIGNOR TO THE FIBRUBBER COMPANY, OF CHICOPEE FALLS, MASSACHUSETTS, A COBPQBATIGN O35MASSACHUSETTS.

WIRE-COVERING DEVICE.

Application filed January 15, 1924. Serial No..688,440. 2

This invention relates to apparatus desliding onrods 31 suitably fixedin brackets 65 signed to cover endless rings with strips of and 83mounted on the main frame 34 of adhesive material. The particular taskfor the machine. At each end of the rods they which the machine isintended is the coverare, preferably loosely encircled by coiled irigwith rubberized fabric of the cabled or springs acting as bumpers tocheck the bundled Wire hoops used as bead reinforcecarriage in itsreciprocation. A. piston rod ments in the manufacture of automobile tire36} is secured to the carriage, and has a casings. The manner in whichthe several piston 37 thereon running in a pneumatic objects of economy,accuracy, and speed in cylinder 38. On the admission of air to the i0operation are accomplished will appear from head of the cylinder thecarriage will be the following description. moved along its guide rodsso as to separate e5 Referring now to the drawings, the pulleys with anelastic pressure, thus Fig. 1 is a plan of the machine; drawmg the hoopa t1ght as shown in Fig. 3.

Fig. 2 is a front elevation with the ma- Return of the carriage to thenormal posichine idle; tlon of Fig. 2 is accomplished by a weight Fig. 3is a front elevation of the machine 39 (Fig. 3) connected to thecarriage by a in operation; cord 40 passing over a pulley 41 on the Fig.4 is a detail section on line 4-4 of frame.

Fi 1; Rotation of the driven shaft 26 may be 20 Fig. 5 is a detail planof a portion of the controlled by any suitable clutch mechanism,

mechanism, partially broken away; indicated generically at 42 in Fig. 1and con- Fig. 6 is an enlarged plan showing the trolled by a foottreadle 43. The clutch passage of the hoop and fabric through the may beof any standard type, and has not for folding device, showing also ininterspersed l r as n been Shown in detail. The con- 25 sections theprogression of the folding operstani y dIIVBH member f he Clu ch isconti nected to a motor 44 by a reduction gear so Fig. 7 is a section online 7-7 of Fig. 6, mechanism which, as it may also be of any showing inaddition the final pressing roll standard type, has been indicatedgenerically Figs. 8 and 9 are perspectives of a folder; only by thenumeral 45. The motor is oper- 30 Fi 10 i i w o li 10 -1() f Fig, 7,ated steadily while the machine is in use,

illustrating the action of the final pressing QPP gQ t rr a the Work inthe oll chine being controlled by the clutch treadle.

Fig, 11 i detail section of the product For convenience thls treadle isheld by a f th hi v spring 46 in a positlon to keep the clutch V, 35Fig, 12 i a d tail tio i il t a dlsengaged, engagement beingaccomplished portion of Fig. 10, but showing a modificay a Pressure ofthe operators fOQttion; The idle pulley 22 may have a plain Fig. 13 is asimilar detail section showgroove, but is preferably made with slantinging a second modification; and sides which act as guides for locatingthe 49 Fig. 14 is a detail section of the final wires in the groove. Thedriven pulley 23,

product made from the wires covered accordhowever, is preferably madewith steppeda5 ing to the second modification. off and slanting sides tothe groove, as is The machine is designed to receive a coil, shown inFigs. 5 and 6, permitting the fab-- cable, or hoop of wire a (Fig. 3)which is ricto be drawn gradually into the groove.

45 to be covered with a strip of rubberized The slanting sides act as aguiding means fabric h." This wire hoop is received in whereby the edgesof the fabric are turned grooves 20 and .21 'inpulleys 22 and 23 reupand in towards each other while the fab-.

a spectivelvX-{Fig. 5 ""Pulley '23 is mounted, ri'c is being drawn intothegroove 21 and as bya hey24and' a iocking stud 25, on a taking theshape of a letter U. As the fabfili driving shaftQfi, which? receivesrotarymo-. ric and wires pass overthe pulley the edges 1 .tion from asource to he described. Pulley of the fabric 6 are stretched due totheir 2211s mounted for free rotation on a shaft 27. being turned up bythe beveled sides and being held in place by a stud 28. Shaft 2'7 beingbent around the pulley and the tines is fixed as by! a set screw 29 to acarriage 30 of the folder. The stretching of the edges of the fabricpermits the bead wires to be covered free from wrin fies or folding ofthe fabric at the edges. The folder and presser rolls are carriedrespectively by a vertical carriage 50 and an an 'ularly arrangedcarriage 51, each sliding freely upon rods 52 suitably secured tothebracket 33 (cf. Figs. 1, 2, 3, and 4). Nuts 54 on the end of the rodssecure in place crosspieces 55 which'limit the outward movement of thecarriages, while inward motion is limited by adjustable stops 56 whichposition the tools in proper relation to the pulley 23. Each carriagehas attached to it the rod 57 of a piston 58 running in a pneumaticcylinder 59 which in turn is attached to the crosspiece 55. Cords 60 and61 are attached to the carriages 50 and 51 respectively by eyes 62. Cord61 runs over a pulley 63 on the block 76 on the bottom of the carriage51.. As best shown in Fig. 10, these rolls are crosspiece of theangular-1y moving carriage, while cord runs over a pulley 64 on thevertical carriage and a pulley 65 on the angular carriage. At a point 66beyond the latter pulley the cords are joined, an extension of one ofthem passing over a pulley 66 on the frame (Fig. 3) and having attachedto it a weight 67. By this means the carriages are automaticallyreturned to their outer or inactive positions upon the release of theair pressure in the pneumatic cylinders.

Vertical carriage 50 has an overhanging bracket upon which is secured afolder preferably of the design illustrated in Figs. 8 and 9. Theforward end of the folder (that at the left in Figs. 2, 7, and 8) isbifurcated at 70, the two tines being curved downward to underlie theedges of the fabric strip b'and fit snugly in the recess 102 of pulley23, whereby they turn the edges of the fabric upward. (See Figs. 6 and7.) A groove 71 in the bottom of the folder acts as a continuation ofthe space between the folders, and permits the passage of the upturnedfabric edges. The sides of the folder are beveled as at 72 to allow thefolder to fit snugly into the groove in pulley 23.

After having been folded around the wire by the device just describedthe fabric covering on the wire is given a final pressing by a pair ofrolls 75 rotatably secured in ,a

mounted at an angle to each otherand to thewire so as to exert a wipingas well as a pressing action upon the-fabric. In

Fig. 10 therein is traveling away from the reader, and the drawingaction of the rolls, as they are rotated by the passage of the fabricbetween them, is apparent- After the covered bead has passed these rollsthe lflbl'lc is drawn smoothly and tightly around the wire 'into thecondition illustrated in Fig. 11, with the edges of the rubberizedfabric firmly pressed together into adhesive contact. I

" springs.

end of the shaft are holes 83 in which fit balls 84 pressed outwardly bysmall helical The metal around the outer end of each hole is peened overafter the ball and spring has been inserted so as to retain them inplace. Over this end of the shaft a retaining disk 85 is adapted toslide, being held in place by the balls 84 snapping into a groove 86 inthe bore of the disk. By this construction the fabric roll 80 may bequickly replenished when exhausted. To accommodate different widths offabric stock the roll is backed up by a removable spacing collar 87, forwhich may be substituted collars of different thicknesses when the widthof stock is chan ed. The retaining disk may also be rep aced by anotherof different size if it is desired to align the fabric with entireaccuracy.

In Fig. 12 a modification of the folding operation is shown whichpreserves certain but not all of the features of the invention. In thiscase-the folder carried by vertical carriage 50 is designed so as tocause the edges of the fabric strip to overlaparound the wire, and therollers on sllde 51 are replaced by a single roller adapted to press'used, spaced a little apart during the covering, so that a bridge 90 offabric is formed which, when the bead is compressed to shape as in Fig.14, forms the trian ular body portion 91 of the completed bead filler.In this modification the pulley 23 is made wider, and has a central rib92 serving to separate the two bead hoops and to give an initial crownto the fabric making easier the final shaping to triangular form. Thefolder of Fig. 8 is widened and shaped conformably with the changed typeof the work. The rolls 75 may, however, be in this case leftsubstantially as in Fig. 10.

Control of the rotation of pulley 23 is under the control of theoperator b treadle 43.

mit compressed air from a supply pipe 97 to:

a pipe 98 connected by branches with the several air cylinders, or topermit the air from these cylinders to exhaust into a vent pipe 99. By aslight motion of the operators foot the valve can be actuated toposition the parts in either their active or inactive positions.

In operation the hoop of wire which is to be taped is first placedaround the two pulleys while the latter are in the pthlllflll of Fig. 2.In case the hoop is formed of a siugle length of wire coiled up severaltimes with its ends joined it may be that the single coils have becomeirregular, and'if so it is desirable to make them roughly uniform before placing the hoop in the machine. As an aid to .this operation Ihave shown a hook or lug 100 (Fig. 1) over which the worker may loop thewire, pulling upon it manually until an approximate equalization hasbeen brought about. The hoo is then in condition to be placed on the pule s.

With the wire in place the air va ve is actuated to cause separation ofthe pulleys and positioning of the carriages 50 and 51 adja cent thedriving pulley. The fabric strip is then inserted between the wire andpulley 23, the flanged sides 101 of the pulley acting as guides. Clutchtreadle s3 is then depressed causing the pulley 23 to rotate and drawthe wire and fabric through the folding devices. The progressive foldinof the fabric around the wire is indicated y the successive sectionssuperposed on Fig. 6. The fabric gradually shapes itself in trough form,at first before it even contacts with pulley 23 and finally by theaction of the inner surfaces of the tines on the folder. The edges ofthe fabric are by this means turned outwardly around the wire, and passtogether through the slot 71. On emerging from this slot. the fabricedges encounter the rolls 75, which by their simultaneous drawing andpressing action cause the fabric to be permanently and tightly boundaround the wire. When the leading end of the fabric has nearly completedthe circuit of the pulleys the machine is stopped and the fabric severedfrom the supply. The machine may then be started again and run until thefabric has been completely applied to the Wire. By a .motion of the airvalve the pulleys may now be brought closer together, and the folder andpressing wheels backed off, so that the completely covered wire cablemay be removed from the machine.

Having thus described my invention, I claim:

1. In a device for covering rings with a strip of material; a pair ofrolls around which the ring is stretched, one of said rolls having agrooved portion for the reception of the ring; and means for turning upand pressing together around the ring so as to form into a projectinglip the side portions of a strip of material inserted between the ringand the roll.

2. In a device for covering a pair of rings with a single strip ofmaterial; a pair of rolls around which the rings are stretched, and atleast one of the rolls having spaced grooves and a projecting ribbetween the grooves to force outwardly a strip of material insertedbetween the rolls and the rings.

3. In a device for covering a )air of rings with a single strip ofmaterial; a pair of rolls around which the rings are stretched, saidrolls each having spaced grooves to hold the rings in spaced relationand at least one of the rolls having a projecting rib between thegrooves to force outwardly a strip of material inserted between therolls and the rings; and means to fold around the wires the edgeportions of such a strip; whereby a composite ring is formed having apair of spaced rings united and enclosed by an outwardly curved bridgingportion of material.

4. In a device for covering rings of wire with an adhesive stripmaterial, a grooved pulley around which the wire passes, means forholding the wire tightly on the pulley, means to' bring together aroundthe wire the edges of a strip inserted between the wire and the pulley,and a pair of rolls set obliquely to the plane of the pulley andconverging along the line of travel of the wire to draw the striptightly around the wire and press its edges together.

5. In a device for covering rings of wire with an adhesive stripmaterial, a grooved pulley around which the wire passes, a secondpulley, a strip supply adapted to supply strip material between thefirst pulley and the wire, folding devices movably arranged ad'acent thefirst pulley, and means operable to cause separation of the pulleys tohold the wire taut and simultaneously there with to cause the foldingdevices to shift from an inactive position spaced from the first pulleyto an operative position in close adjacency thereto.

6. In a device for covering rings of wire with an adhesive stripmaterial, a. grooved pulley around which the wire passes, means forholding the wire tightly on. the pulley, i v

II-55' 1 i a strip supply adapted to sup 1 stamp ma-. terial between thedpulley an; fine wire, a folder arranged a jacent the alley and adaptedto bring the edges of t e strip together around the wire, and a. pairvof rolls set obliquely to the plane of the pulley and converging alongthe liner of travel of the wire to draw the strip tightly around thewire and press its edges together.

a device for covering rings of wire with an "adhesive strip material, agrooved pulley around which the wire passes, means for holding the wiretightly on the pulley,

'Ill

lob

a strip supply adapted to sup ly strip material betweenthe pulley an thewire, a

pointed forked folder arranged adjacent the pulley, said pulley beinggrooved to allow the points of the forked folder to lie in the grooveand under the ed es of the strip and said folder being adapted to bringthe edges of the strip together around the wire, and a pair of rolls setobliquely to the plane of the pulley and converging along the line oftravel of the wire to draw the strip tightly around the wire and pressits edges together. f 8. In a device for covering rings of wire 'with anadhesive strip material, a grooved ulley around which the wire passes,means or holding the wire tightly on the pulley, a strip supply adaptedto sup ly strlp material between the pulley an the wire, a .foldcrarranged adjacent the pulley, said pulley and folder cooperating tostretch the edges of the strip and bring them together around the wire,and a pair of rolls set obliquely to the plane of the pulley and convermg along the line of travel of the wire draw the strip-tightly aroundthe wire and press its edges together.

9. A device of the character described comprising means to supportgrommets in spaced relation and means to fold a strip of materialbetween and around the grommets.

10. A device of the character described comprising means to supportgrommets in spaced parallel relation and means to fold a strip ofmaterial between and around the grommets.

11. A device of the character described comprising means to supportgrommets in spaced relation, means to fold an intermediate portion of astrip of material between the grommets and means to fold the edges ofthe strip aboutthe adjacent grommets.

12. A device of the character described comprising meansto supportgrommets in spaced relation, means to fold the intermediate portion of astrip of material between the grommets and means to fold the edges ofthe strip around the adjacent grommets and into overlapping relationwith the central fold.

13. A device of the character described comprising means to support aplurality of strands of head core material in spaced relation and meansto fold a strip of tiller material between and around the strands.

14. A device of the character described comprising means to support aplurality of strands of bead core material in spaced relation, means tofold an intermediate portion of a strip of filler material between thebead cores and means to fold the edges of the strip about the adjacentstrands.

15. A device of the character described comprising a roll with a centralflange and means to feed a pair of grommets over said roll, a grommetpassing on each side of the flange.

16. A device of the character described comprising a roll provided withspaced grooves adapted to receive grommets and means to position a stripof material in underlying relation to the grommets as they pass over theroll.

17. A device of the character described comprising a roll provided withspaced grooves adapted to receive grommets and a flanged roll, adjacentthe grooved roll, the flange of which passes between the grommets. v

, GHARLES H. DESAUTELS.

